[rattusbaggus]

Recently testing a just purchased Monolith Liquid Spark amp's pre-out by plugging into a Sabaj A4 Aux in, but getting no sound. The source is a record player, which when connected directly to the Sabaj Aux In works fine. I've tried unplugging headphones while powered on, and resetting the power with no headphones, turning the volume knob up the whole way on the Spark and using the gain boost.

Not sure if for some reason this combination is incompatible or the Spark is defective. Any ideas?